Ive have had geckos,skinks,tegus,bearded dragons & nothing comes close to what a monitor requires to live properly.As said they need huge enclosure comparing to other reptiles,need deep substrate & require diferente level of heat threw out the enclosure,with lots of hiding spaces & proper diverse feeding of what there diet consistes in the wild.If over feed there will be consequences!!! Varanus are not for any beginer reptiles.After having all these pets above & then some I tried my self to raise one & failed,its ben quite a while & im still debating if i should get another ,or quit. I have a 4 x 3 x3 enclosure ,that i might give it a try one more time..The savannah monitor or varanus exanthematicus is truelly the most abused reptile in the trade...Its sad to see so many Varanus are perished from poor knowlegde from there owners......Its really what you want to do,or really want...Just remember do alot of reading researching before even building a enclosure to house one...never get one,without having the proper housing please...The best of luck to what you decide to do....